use victors questions about cat speices to make a numbered key to indentify lions, cheetahs, leopards, and caracals

c. heat from the poles back down towards the equator.

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question

answer; endoplasmic reticulum;